Home - WRH06 - WRHHS301A

WRHHS301A

Apply the principles of hairdressing science

Unit Descriptor This unit describes the skills and knowledge required to apply the principles of skin and hair biology and cosmetic chemistry to hairdressing services. This unit of competency will apply to a range of hairdressing services and roles in the workplace.

ELEMENTPERFORMANCE CRITERIA
1 . Apply knowledge of skin structure and function.
  1. The main structure, functions and role of the skin are identified and applied to the provision of hairdressing services.

  2. The structure and function of the glands of the skin are identified and applied to the provision of hairdressing services.

  3. The physicaleffects of scalp treatments on the skin are identified and related to the performance of hairdressing treatments.

2 . Apply knowledge of the structure and function of hair.
  1. The main functionsand role of hair are identified and applied to the provision of hairdressing services.

  2. The glands and muscles associated with thehair and hair follicles are identified and applied to the provision of hairdressing services.

  3. The structural and cellular features of hair and hair follicles are identified and applied to the provision of hairdressing services.

  4. The process of hair growth and thehair growth cycle are identified and applied to the provision of hairdressing services.

  5. The characteristics of normal and damaged hair are identified and applied to the provision of hairdressing services.

  6. Factors affecting hair colour and chemical reformation are identified and applied to the provision of hairdressing services.

  7. The physical effects of hairdressing services on the hair are identified and applied to the provision of hairdressing services.

3 . Apply knowledge of cosmetic chemistry
  1. The relevant concepts of cosmetic chemistry are identified and related to the safe performance of hairdressing services, according to relevant legislation and workplace policies and procedures .

  2. The range of chemicals used in hairdressing treatments is assessed and related to the performance of hairdressing services.

  3. Suitability of the hair for chemical services is based on analysis of the effect of previous chemical services or environmental factors on the condition of the hair.

4 . Apply knowledge of hairdressing products.
  1. The formulation of a range of hairdressing products is assessed in relation to the products' purpose and action on the hair.

  2. Contraindications are identified where they relate to client health and safety, hair condition and/or service outcomes.

5 . Promote hair and scalp care
  1. Knowledge of the physical and chemical actions of a range of hairdressing products is applied during services to maximise the promotion of hair and scalp care, and client and operator safety.

  2. Knowledge of potential environmental damage to hair is applied in the provision of after care service and advice.





Key CompetencyExamples of ApplicationPerformance
Level
How can information be collected, analysed and organised?Evaluating hair and scalp treatments and advising on future treatments require the communication of ideas and information.3
How are ideas and information communicated within this competency?Identifying client needs and characteristics requires information to be collected, analysed and organised.2
How are activities planned and organised?Performing a range of hairdressing services and treatments, and providing after care service and advice according to client requirements, manufacturer's instructions, safety and hygiene requirements and workplace procedures require activities to be planned and organised.3
How are problem solving skills applied?Supporting the efficient operation of the workplace and working within workplace policies and procedures may involve teamwork.2
How are mathematical ideas and techniques used?Applying an understanding of pH in the selection and use of hairdressing products requires the use of mathematical ideas and techniques.3
How is use of technology applied?Recognising and responding to unsafe situations and applying preventative measures require problem solving skills.2
How is team work used within this competency?Recording relevant outcomes and reporting problems may require the use of technology.1

Range Statement

The main structure, functions and role of the skin may include:

The structure and function of the glands of the skin may include:

Physical effects of scalp treatments may include:

The main functions and role of hair may include:

The glands and muscles associated with the hair and hair follicles may include:

The structural and cellular features of hair and hair follicles may include:

The process of hair growth and the hair growth cycle may include:

The characteristics of normal and damaged hair may include:

Hair colour and chemical reformation may include:

Physical effects of hairdressing services may include:

Concepts of cosmetic chemistry may include:

Relevant legislation may include:

Workplace policies and procedures may include:

Range of hairdressing products may include:

Contraindications may include:

Potential environmental damage may include:


Evidence Guide

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Context of assessment

For valid and reliable assessment of this unit, competency should be consistently demonstrated over a period of time and observed by the assessor and/or the technical expert working in partnership with the assessor. The technical expert may include the hairdresser and/or trichologist and may be in a simulated environment.

Competency should be demonstrated in the workplace or a simulated workplace environment in a range of situations that may include client interruptions and involvement in other related activities normally expected in the workplace. For further guidance on the use of an appropriate simulated environment, refer to the Assessment Guidelines in this Training Package.

Specific resources for assessment

Competency for this unit should be assessed through access to:

Relationship to other units

This unit is a co-requisite to a range of hairdressing units. It requires an assessment outcome that includes the application of hairdressing science knowledge to the performance of one or more hairdressing treatments.

Prerequisite units:

Method of assessment

The following assessment methods are suggested.

Evidence required for demonstration of consistent performance

For valid and reliable assessment of this unit, evidence should be gathered through a range of methods to indicate consistent performance.

It can be gathered from assessment of the unit of competency alone, through an integrated assessment activity or through a combination of both.

Evidence should be gathered as part of the learning process.